<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddGoodsPage">添加商品</el-button>
        </el-col>
      </el-row>

      <!--table表格区域-->
      <el-table :data="goodsList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateFormat}}
          </template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template slot-scope="scope">
            <!-- 修改按钮 todo 编辑功能没有添加  @click="showEditDialog(scope.row)"-->
            <el-button type="primary" size="mini" icon="el-icon-edit"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" size="mini" icon="el-icon-delete"
                       @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination @size-change="handleSizeChange"
                     @current-change="handleCurrentChange"
                     :current-page="queryInfo.pagenum"
                     :page-sizes="[5, 10, 15, 20]"
                     :page-size="queryInfo.pagesize"
                     layout="total, sizes, prev, pager, next, jumper"
                     :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
    export default {
        name: "List",
        data() {
            return {
                // 查询参数对象
                queryInfo: {
                    query: '',
                    // 当前页码
                    pagenum: 1,
                    // 当前每页显示多少条数据
                    pagesize: 10
                },
                // 商品列表
                goodsList: [],
                // 总数据条数
                total: 0
            }
        },
        created() {
            this.getGoodsList()
        },
        methods: {
            // 根据分页获取商品信息列表
            async getGoodsList() {
                const {data: result} = await this.$http.get('goods', {params: this.queryInfo})
                console.log('getGoodsList--:', result)
                if (result.meta.status !== 200) {
                    return this.$message.error(result.meta.msg || '获取商品列表失败')
                }
                this.goodsList = result.data.goods
                this.total = result.data.total
                this.$message.success(result.meta.msg || '获取商品列表成功')
            },
            // 监听 pagesize 改变的事件
            handleSizeChange(newPageSize) {
                // console.log('handleSizeChange---:', newPageSize)
                this.queryInfo.pagesize = newPageSize
                this.getGoodsList()
            },
            // 监听 页码值 改变的事件
            handleCurrentChange(newPageNum) {
                // console.log('handleCurrentChange---:', newPageNum)
                this.queryInfo.pagenum = newPageNum
                this.getGoodsList()
            },
            // 删除
            async removeById(id) {
                // 弹框询问用户是否删除数据
                const confirmResult = await this.$confirm(
                    '此操作将永久删除该商品, 是否继续?',
                    '提示',
                    {
                        confirmButtonText: '确定',
                        cancelButtonText: '取消',
                        type: 'warning'
                    }).catch(error => error)

                // 如果确认删除，则返回值为字符串 confirm
                // 如果取消了删除，则返回值为字符串 cancel
                console.log('confirmResult--:', confirmResult)
                if (confirmResult !== 'confirm') {
                    return this.$message.info('已取消删除')
                }
                const {data: result} = await this.$http.delete(`goods/${id}`)
                if (result.meta.status !== 200) {
                    return this.$message.error(result.meta.msg || '删除商品失败')
                }
                this.$message.success('删除商品成功')
                this.getGoodsList()
            },
            //通过路由跳转到指定的界面
            goAddGoodsPage() {
                this.$router.push('/goods/add')
            }
        }
    }
</script>

<style lang="less" scoped>

</style>
